The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2012
Filed:
Jan. 08, 2010
Jeffrey David Gartz, Blackfalds, CA;
Garret William Hansen, Lacombe, CA;
Robert Michael Frederick Lesiuk, Ponoka County, CA;
Jeffrey David Gartz, Blackfalds, CA;
Garret William Hansen, Lacombe, CA;
Robert Michael Frederick Lesiuk, Ponoka County, CA;
Owen Oil Tools LP, Houston, TX (US);
Abstract
An apparatus for use in dispensing fluid into a wellbore includes a piston element releasably coupled to a housing and a detonator in the housing that applies a force sufficient to release the piston element from the housing when activated. The apparatus also has an intermediate section that mates with the upper section, an elongated member coupled to the piston and that is positioned in a bore of the intermediate section; and a lower section having a housing that mates with the intermediate section. The housing includes at least one opening providing communication between a bore of the housing and an exterior of the housing; and a movable barrier in the lower section. The movable barrier has a first position, wherein the barrier substantially blocks communication between the bore of the intermediate section and the at least one opening, and a second position, wherein the barrier does not substantially block communication between the bore of the intermediate section and the at least one opening.